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<div id=Content><div class="CClass"><div class=CTopic id=MainTopic><h1 class=CTitle><a name="mxXmlRequest"></a>mxXmlRequest</h1><div class=CBody><p>XML HTTP request wrapper.&nbsp; See also: <a href="mxUtils-js.html#mxUtils.get" class=LFunction id=link28 onMouseOver="ShowTip(event, 'tt23', 'link28')" onMouseOut="HideTip('tt23')">mxUtils.get</a>, <a href="mxUtils-js.html#mxUtils.post" class=LFunction id=link29 onMouseOver="ShowTip(event, 'tt24', 'link29')" onMouseOut="HideTip('tt24')">mxUtils.post</a> and <a href="mxUtils-js.html#mxUtils.load" class=LFunction id=link30 onMouseOver="ShowTip(event, 'tt25', 'link30')" onMouseOut="HideTip('tt25')">mxUtils.load</a>.&nbsp; This class provides a cross-browser abstraction for Ajax requests.</p><h4 class=CHeading>Encoding</h4><p>For encoding parameter values, the built-in encodeURIComponent JavaScript method must be used.&nbsp; For automatic encoding of post data in <a href="../editor/mxEditor-js.html#mxEditor" class=LClass id=link31 onMouseOver="ShowTip(event, 'tt26', 'link31')" onMouseOut="HideTip('tt26')">mxEditor</a> the <a href="../editor/mxEditor-js.html#mxEditor.escapePostData" class=LVariable id=link32 onMouseOver="ShowTip(event, 'tt27', 'link32')" onMouseOut="HideTip('tt27')">mxEditor.escapePostData</a> switch can be set to true (default).&nbsp; The encoding will be carried out using the conte type of the page.&nbsp; That is, the page containting the editor should contain a meta tag in the header, eg.&nbsp; &lt;meta http-equiv=&rdquo;Content-Type&rdquo; content=&rdquo;text/html; charset=UTF-8&rdquo;&gt;</p><h4 class=CHeading>Example</h4><blockquote><pre class="prettyprint">var onload = function(req)
{
  mxUtils.alert(req.getDocumentElement());
}

var onerror = function(req)
{
  mxUtils.alert('Error');
}
new mxXmlRequest(url, 'key=value').send(onload, onerror);</pre></blockquote><p>Sends an asynchronous POST request to the specified URL.</p><h4 class=CHeading>Example</h4><blockquote><pre class="prettyprint">var req = new mxXmlRequest(url, 'key=value', 'POST', false);
req.send();
mxUtils.alert(req.getDocumentElement());</pre></blockquote><p>Sends a synchronous POST request to the specified URL.</p><h4 class=CHeading>Example</h4><blockquote><pre class="prettyprint">var encoder = new mxCodec();
var result = encoder.encode(graph.getModel());
var xml = encodeURIComponent(mxUtils.getXml(result));
new mxXmlRequest(url, 'xml='+xml).send();</pre></blockquote><p>Sends an encoded graph model to the specified URL using xml as the parameter name.&nbsp; The parameter can then be retrieved in C# as follows:</p><blockquote><pre class="prettyprint">string xml = HttpUtility.UrlDecode(context.Request.Params[&quot;xml&quot;]);</pre></blockquote><h4 class=CHeading>Or in Java as follows</h4><blockquote><pre class="prettyprint">String xml = URLDecoder.decode(request.getParameter(&quot;xml&quot;), &quot;UTF-8&quot;).replace(&quot;\n&quot;, &quot;&amp;#xa;&quot;);</pre></blockquote><p>Note that the linefeeds should only be replaced if the XML is processed in Java, for example when creating an image.</p><!--START_ND_SUMMARY--><div class=Summary><div class=STitle>Summary</div><div class=SBorder><table border=0 cellspacing=0 cellpadding=0 class=STable><tr class="SMain"><td class=SEntry><a href="#mxXmlRequest" >mxXmlRequest</a></td><td class=SDescription>XML HTTP request wrapper. </td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#mxXmlRequest.Functions" >Functions</a></td><td class=SDescription></td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#mxXmlRequest.mxXmlRequest" id=link1 onMouseOver="ShowTip(event, 'tt1', 'link1')" onMouseOut="HideTip('tt1')">mxXmlRequest</a></td><td class=SDescription>Constructs an XML HTTP request.</td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#mxXmlRequest.Variables" >Variables</a></td><td class=SDescription></td></tr><tr class="SVariable SIndent2 SMarked"><td class=SEntry><a href="#mxXmlRequest.url" id=link2 onMouseOver="ShowTip(event, 'tt2', 'link2')" onMouseOut="HideTip('tt2')">url</a></td><td class=SDescription>Holds the target URL of the request.</td></tr><tr class="SVariable SIndent2"><td class=SEntry><a href="#mxXmlRequest.params" id=link3 onMouseOver="ShowTip(event, 'tt3', 'link3')" onMouseOut="HideTip('tt3')">params</a></td><td class=SDescription>Holds the form encoded data for the POST request.</td></tr><tr class="SVariable SIndent2 SMarked"><td class=SEntry><a href="#mxXmlRequest.method" id=link4 onMouseOver="ShowTip(event, 'tt4', 'link4')" onMouseOut="HideTip('tt4')">method</a></td><td class=SDescription>Specifies the request method. </td></tr><tr class="SVariable SIndent2"><td class=SEntry><a href="#mxXmlRequest.async" id=link5 onMouseOver="ShowTip(event, 'tt5', 'link5')" onMouseOut="HideTip('tt5')">async</a></td><td class=SDescription>Boolean indicating if the request is asynchronous.</td></tr><tr class="SVariable SIndent2 SMarked"><td class=SEntry><a href="#mxXmlRequest.binary" id=link6 onMouseOver="ShowTip(event, 'tt6', 'link6')" onMouseOut="HideTip('tt6')">binary</a></td><td class=SDescription>Boolean indicating if the request is binary. </td></tr><tr class="SVariable SIndent2"><td class=SEntry><a href="#mxXmlRequest.withCredentials" id=link7 onMouseOver="ShowTip(event, 'tt7', 'link7')" onMouseOut="HideTip('tt7')">withCredentials</a></td><td class=SDescription>Specifies if withCredentials should be used in HTML5-compliant browsers. </td></tr><tr class="SVariable SIndent2 SMarked"><td class=SEntry><a href="#mxXmlRequest.username" id=link8 onMouseOver="ShowTip(event, 'tt8', 'link8')" onMouseOut="HideTip('tt8')">username</a></td><td class=SDescription>Specifies the username to be used for authentication.</td></tr><tr class="SVariable SIndent2"><td class=SEntry><a href="#mxXmlRequest.password" id=link9 onMouseOver="ShowTip(event, 'tt9', 'link9')" onMouseOut="HideTip('tt9')">password</a></td><td class=SDescription>Specifies the password to be used for authentication.</td></tr><tr class="SVariable SIndent2 SMarked"><td class=SEntry><a href="#mxXmlRequest.request" id=link10 onMouseOver="ShowTip(event, 'tt10', 'link10')" onMouseOut="HideTip('tt10')">request</a></td><td class=SDescription>Holds the inner, browser-specific request object.</td></tr><tr class="SVariable SIndent2"><td class=SEntry><a href="#mxXmlRequest.decodeSimulateValues" id=link11 onMouseOver="ShowTip(event, 'tt11', 'link11')" onMouseOut="HideTip('tt11')">decodeSimulateValues</a></td><td class=SDescription>Specifies if request values should be decoded as URIs before setting the textarea value in <a href="#mxXmlRequest.simulate" class=LFunction id=link12 onMouseOver="ShowTip(event, 'tt12', 'link12')" onMouseOut="HideTip('tt12')">simulate</a>. </td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#mxXmlRequest.Functions" >Functions</a></td><td class=SDescription></td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#mxXmlRequest.isBinary" id=link13 onMouseOver="ShowTip(event, 'tt13', 'link13')" onMouseOut="HideTip('tt13')">isBinary</a></td><td class=SDescription>Returns <a href="#mxXmlRequest.binary" class=LVariable id=link14 onMouseOver="ShowTip(event, 'tt6', 'link14')" onMouseOut="HideTip('tt6')">binary</a>.</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#mxXmlRequest.setBinary" id=link15 onMouseOver="ShowTip(event, 'tt14', 'link15')" onMouseOut="HideTip('tt14')">setBinary</a></td><td class=SDescription>Sets <a href="#mxXmlRequest.binary" class=LVariable id=link16 onMouseOver="ShowTip(event, 'tt6', 'link16')" onMouseOut="HideTip('tt6')">binary</a>.</td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#mxXmlRequest.getText" id=link17 onMouseOver="ShowTip(event, 'tt15', 'link17')" onMouseOut="HideTip('tt15')">getText</a></td><td class=SDescription>Returns the response as a string.</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#mxXmlRequest.isReady" id=link18 onMouseOver="ShowTip(event, 'tt16', 'link18')" onMouseOut="HideTip('tt16')">isReady</a></td><td class=SDescription>Returns true if the response is ready.</td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#mxXmlRequest.getDocumentElement" id=link19 onMouseOver="ShowTip(event, 'tt17', 'link19')" onMouseOut="HideTip('tt17')">getDocumentElement</a></td><td class=SDescription>Returns the document element of the response XML document.</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#mxXmlRequest.getXml" id=link20 onMouseOver="ShowTip(event, 'tt18', 'link20')" onMouseOut="HideTip('tt18')">getXml</a></td><td class=SDescription>Returns the response as an XML document. </td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#mxXmlRequest.getStatus" id=link21 onMouseOver="ShowTip(event, 'tt19', 'link21')" onMouseOut="HideTip('tt19')">getStatus</a></td><td class=SDescription>Returns the status as a number, eg. </td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#mxXmlRequest.create" id=link22 onMouseOver="ShowTip(event, 'tt20', 'link22')" onMouseOut="HideTip('tt20')">create</a></td><td class=SDescription>Creates and returns the inner <a href="#mxXmlRequest.request" class=LVariable id=link23 onMouseOver="ShowTip(event, 'tt10', 'link23')" onMouseOut="HideTip('tt10')">request</a> object.</td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#mxXmlRequest.send" id=link24 onMouseOver="ShowTip(event, 'tt21', 'link24')" onMouseOut="HideTip('tt21')">send</a></td><td class=SDescription>Send the <a href="#mxXmlRequest.request" class=LVariable id=link25 onMouseOver="ShowTip(event, 'tt10', 'link25')" onMouseOut="HideTip('tt10')">request</a> to the target URL using the specified functions to process the response asychronously.</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#mxXmlRequest.setRequestHeaders" id=link26 onMouseOver="ShowTip(event, 'tt22', 'link26')" onMouseOut="HideTip('tt22')">setRequestHeaders</a></td><td class=SDescription>Sets the headers for the given request and parameters. </td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#mxXmlRequest.simulate" id=link27 onMouseOver="ShowTip(event, 'tt12', 'link27')" onMouseOut="HideTip('tt12')">simulate</a></td><td class=SDescription>Creates and posts a request to the given target URL using a dynamically created form inside the given document.</td></tr></table></div></div><!--END_ND_SUMMARY--></div></div></div>

<div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="mxXmlRequest.Functions"></a>Functions</h3></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxXmlRequest.mxXmlRequest"></a>mxXmlRequest</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>function mxXmlRequest(</td><td class="PParameter  prettyprint " nowrap>url,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>params,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>method,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>async,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>username,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>password</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><p>Constructs an XML HTTP request.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>url</td><td class=CDLDescription>Target URL of the request.</td></tr><tr><td class=CDLEntry>params</td><td class=CDLDescription>Form encoded parameters to send with a POST request.</td></tr><tr><td class=CDLEntry>method</td><td class=CDLDescription>String that specifies the request method.&nbsp; Possible values are POST and GET.&nbsp; Default is POST.</td></tr><tr><td class=CDLEntry>async</td><td class=CDLDescription>Boolean specifying if an asynchronous request should be used.&nbsp; Default is true.</td></tr><tr><td class=CDLEntry>username</td><td class=CDLDescription>String specifying the username to be used for the request.</td></tr><tr><td class=CDLEntry>password</td><td class=CDLDescription>String specifying the password to be used for the request.</td></tr></table></div></div></div>

<div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="mxXmlRequest.Variables"></a>Variables</h3></div></div>

<div class="CVariable"><div class=CTopic><h3 class=CTitle><a name="mxXmlRequest.url"></a>url</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.url</td></tr></table></blockquote><p>Holds the target URL of the request.</p></div></div></div>

<div class="CVariable"><div class=CTopic><h3 class=CTitle><a name="mxXmlRequest.params"></a>params</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.params</td></tr></table></blockquote><p>Holds the form encoded data for the POST request.</p></div></div></div>

<div class="CVariable"><div class=CTopic><h3 class=CTitle><a name="mxXmlRequest.method"></a>method</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.method</td></tr></table></blockquote><p>Specifies the request method.&nbsp; Possible values are POST and GET.&nbsp; Default is POST.</p></div></div></div>

<div class="CVariable"><div class=CTopic><h3 class=CTitle><a name="mxXmlRequest.async"></a>async</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.async</td></tr></table></blockquote><p>Boolean indicating if the request is asynchronous.</p></div></div></div>

<div class="CVariable"><div class=CTopic><h3 class=CTitle><a name="mxXmlRequest.binary"></a>binary</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.binary</td></tr></table></blockquote><p>Boolean indicating if the request is binary.&nbsp; This option is ignored in IE.&nbsp; In all other browsers the requested mime type is set to text/plain; charset=x-user-defined.&nbsp; Default is false.</p></div></div></div>

<div class="CVariable"><div class=CTopic><h3 class=CTitle><a name="mxXmlRequest.withCredentials"></a>withCredentials</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.withCredentials</td></tr></table></blockquote><p>Specifies if withCredentials should be used in HTML5-compliant browsers.&nbsp; Default is false.</p></div></div></div>

<div class="CVariable"><div class=CTopic><h3 class=CTitle><a name="mxXmlRequest.username"></a>username</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.username</td></tr></table></blockquote><p>Specifies the username to be used for authentication.</p></div></div></div>

<div class="CVariable"><div class=CTopic><h3 class=CTitle><a name="mxXmlRequest.password"></a>password</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.password</td></tr></table></blockquote><p>Specifies the password to be used for authentication.</p></div></div></div>

<div class="CVariable"><div class=CTopic><h3 class=CTitle><a name="mxXmlRequest.request"></a>request</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.request</td></tr></table></blockquote><p>Holds the inner, browser-specific request object.</p></div></div></div>

<div class="CVariable"><div class=CTopic><h3 class=CTitle><a name="mxXmlRequest.decodeSimulateValues"></a>decodeSimulateValues</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.decodeSimulateValues</td></tr></table></blockquote><p>Specifies if request values should be decoded as URIs before setting the textarea value in <a href="#mxXmlRequest.simulate" class=LFunction id=link33 onMouseOver="ShowTip(event, 'tt12', 'link33')" onMouseOut="HideTip('tt12')">simulate</a>.&nbsp; Defaults to false for backwards compatibility, to avoid another decode on the server this should be set to true.</p></div></div></div>

<div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="mxXmlRequest.Functions"></a>Functions</h3></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxXmlRequest.isBinary"></a>isBinary</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.isBinary = function()</td></tr></table></blockquote><p>Returns <a href="#mxXmlRequest.binary" class=LVariable id=link34 onMouseOver="ShowTip(event, 'tt6', 'link34')" onMouseOut="HideTip('tt6')">binary</a>.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxXmlRequest.setBinary"></a>setBinary</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>mxXmlRequest.prototype.setBinary = function(</td><td class="PParameter  prettyprint " nowrap>value</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><p>Sets <a href="#mxXmlRequest.binary" class=LVariable id=link35 onMouseOver="ShowTip(event, 'tt6', 'link35')" onMouseOut="HideTip('tt6')">binary</a>.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxXmlRequest.getText"></a>getText</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.getText = function()</td></tr></table></blockquote><p>Returns the response as a string.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxXmlRequest.isReady"></a>isReady</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.isReady = function()</td></tr></table></blockquote><p>Returns true if the response is ready.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxXmlRequest.getDocumentElement"></a>getDocumentElement</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.getDocumentElement = function()</td></tr></table></blockquote><p>Returns the document element of the response XML document.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxXmlRequest.getXml"></a>getXml</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.getXml = function()</td></tr></table></blockquote><p>Returns the response as an XML document.&nbsp; Use <a href="#mxXmlRequest.getDocumentElement" class=LFunction id=link36 onMouseOver="ShowTip(event, 'tt17', 'link36')" onMouseOut="HideTip('tt17')">getDocumentElement</a> to get the document element of the XML document.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxXmlRequest.getStatus"></a>getStatus</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.getStatus = function()</td></tr></table></blockquote><p>Returns the status as a number, eg.&nbsp; 404 for &ldquo;Not found&rdquo; or 200 for &ldquo;OK&rdquo;.&nbsp; Note: The NS_ERROR_NOT_AVAILABLE for invalid responses cannot be cought.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxXmlRequest.create"></a>create</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.create = function()</td></tr></table></blockquote><p>Creates and returns the inner <a href="#mxXmlRequest.request" class=LVariable id=link37 onMouseOver="ShowTip(event, 'tt10', 'link37')" onMouseOut="HideTip('tt10')">request</a> object.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxXmlRequest.send"></a>send</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>mxXmlRequest.prototype.send = function(</td><td class="PParameter  prettyprint " nowrap>onload,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>onerror,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>timeout,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>ontimeout</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><p>Send the <a href="#mxXmlRequest.request" class=LVariable id=link38 onMouseOver="ShowTip(event, 'tt10', 'link38')" onMouseOut="HideTip('tt10')">request</a> to the target URL using the specified functions to process the response asychronously.</p><p>Note: Due to technical limitations, onerror is currently ignored.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>onload</td><td class=CDLDescription>Function to be invoked if a successful response was received.</td></tr><tr><td class=CDLEntry>onerror</td><td class=CDLDescription>Function to be called on any error.&nbsp; Unused in this implementation, intended for overriden function.</td></tr><tr><td class=CDLEntry>timeout</td><td class=CDLDescription>Optional timeout in ms before calling ontimeout.</td></tr><tr><td class=CDLEntry>ontimeout</td><td class=CDLDescription>Optional function to execute on timeout.</td></tr></table></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxXmlRequest.setRequestHeaders"></a>setRequestHeaders</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>mxXmlRequest.prototype.setRequestHeaders = function(</td><td class="PParameter  prettyprint " nowrap>request,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>params</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><p>Sets the headers for the given request and parameters.&nbsp; This sets the content-type to application/x-www-form-urlencoded if any params exist.</p><h4 class=CHeading>Example</h4><blockquote><pre class="prettyprint">request.setRequestHeaders = function(request, params)
{
  if (params != null)
  {
    request.setRequestHeader('Content-Type',
            'multipart/form-data');
    request.setRequestHeader('Content-Length',
            params.length);
  }
};</pre></blockquote><p>Use the code above before calling <a href="#mxXmlRequest.send" class=LFunction id=link39 onMouseOver="ShowTip(event, 'tt21', 'link39')" onMouseOut="HideTip('tt21')">send</a> if you require a multipart/form-data request.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="mxXmlRequest.simulate"></a>simulate</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>mxXmlRequest.prototype.simulate = function(</td><td class="PParameter  prettyprint " nowrap>doc,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>target</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><p>Creates and posts a request to the given target URL using a dynamically created form inside the given document.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>docs</td><td class=CDLDescription>Document that contains the form element.</td></tr><tr><td class=CDLEntry>target</td><td class=CDLDescription>Target to send the form result to.</td></tr></table></div></div></div>

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<!--START_ND_TOOLTIPS-->
<div class=CToolTip id="tt1"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>function mxXmlRequest(</td><td class="PParameter  prettyprint " nowrap>url,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>params,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>method,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>async,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>username,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>password</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote>Constructs an XML HTTP request.</div></div><div class=CToolTip id="tt2"><div class=CVariable><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.url</td></tr></table></blockquote>Holds the target URL of the request.</div></div><div class=CToolTip id="tt3"><div class=CVariable><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.params</td></tr></table></blockquote>Holds the form encoded data for the POST request.</div></div><div class=CToolTip id="tt4"><div class=CVariable><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.method</td></tr></table></blockquote>Specifies the request method. </div></div><div class=CToolTip id="tt5"><div class=CVariable><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.async</td></tr></table></blockquote>Boolean indicating if the request is asynchronous.</div></div><div class=CToolTip id="tt6"><div class=CVariable><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.binary</td></tr></table></blockquote>Boolean indicating if the request is binary. </div></div><div class=CToolTip id="tt7"><div class=CVariable><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.withCredentials</td></tr></table></blockquote>Specifies if withCredentials should be used in HTML5-compliant browsers. </div></div><div class=CToolTip id="tt8"><div class=CVariable><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.username</td></tr></table></blockquote>Specifies the username to be used for authentication.</div></div><div class=CToolTip id="tt9"><div class=CVariable><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.password</td></tr></table></blockquote>Specifies the password to be used for authentication.</div></div><div class=CToolTip id="tt10"><div class=CVariable><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.request</td></tr></table></blockquote>Holds the inner, browser-specific request object.</div></div><div class=CToolTip id="tt11"><div class=CVariable><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.decodeSimulateValues</td></tr></table></blockquote>Specifies if request values should be decoded as URIs before setting the textarea value in simulate. </div></div><div class=CToolTip id="tt12"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>mxXmlRequest.prototype.simulate = function(</td><td class="PParameter  prettyprint " nowrap>doc,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>target</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote>Creates and posts a request to the given target URL using a dynamically created form inside the given document.</div></div><div class=CToolTip id="tt13"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.isBinary = function()</td></tr></table></blockquote>Returns binary.</div></div><div class=CToolTip id="tt14"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>mxXmlRequest.prototype.setBinary = function(</td><td class="PParameter  prettyprint " nowrap>value</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote>Sets binary.</div></div><div class=CToolTip id="tt15"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.getText = function()</td></tr></table></blockquote>Returns the response as a string.</div></div><div class=CToolTip id="tt16"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.isReady = function()</td></tr></table></blockquote>Returns true if the response is ready.</div></div><div class=CToolTip id="tt17"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.getDocumentElement = function()</td></tr></table></blockquote>Returns the document element of the response XML document.</div></div><div class=CToolTip id="tt18"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.getXml = function()</td></tr></table></blockquote>Returns the response as an XML document. </div></div><div class=CToolTip id="tt19"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.getStatus = function()</td></tr></table></blockquote>Returns the status as a number, eg. </div></div><div class=CToolTip id="tt20"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxXmlRequest.prototype.create = function()</td></tr></table></blockquote>Creates and returns the inner request object.</div></div><div class=CToolTip id="tt21"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>mxXmlRequest.prototype.send = function(</td><td class="PParameter  prettyprint " nowrap>onload,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>onerror,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>timeout,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>ontimeout</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote>Send the request to the target URL using the specified functions to process the response asychronously.</div></div><div class=CToolTip id="tt22"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>mxXmlRequest.prototype.setRequestHeaders = function(</td><td class="PParameter  prettyprint " nowrap>request,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>params</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote>Sets the headers for the given request and parameters. </div></div><div class=CToolTip id="tt23"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>get: function(</td><td class="PParameter  prettyprint " nowrap>url,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>onload,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>onerror,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>binary,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>timeout,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>ontimeout,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>headers</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote>Loads the specified URL <b>asynchronously</b> and invokes the given functions depending on the request status. </div></div><div class=CToolTip id="tt24"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>post: function(</td><td class="PParameter  prettyprint " nowrap>url,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>params,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>onload,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>onerror</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote>Posts the specified params to the given URL <b>asynchronously</b> and invokes the given functions depending on the request status. </div></div><div class=CToolTip id="tt25"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>load: function(</td><td class="PParameter  prettyprint " nowrap>url</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote>Loads the specified URL <b>synchronously</b> and returns the mxXmlRequest. </div></div><div class=CToolTip id="tt26"><div class=CClass>Extends mxEventSource to implement an application wrapper for a graph that adds actions, I/O using mxCodec, auto-layout using mxLayoutManager, command history using undoManager, and standard dialogs and widgets, eg. </div></div><div class=CToolTip id="tt27"><div class=CVariable><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxEditor.prototype.escapePostData</td></tr></table></blockquote>Specifies if the data in the post request for saving a diagram should be converted using encodeURIComponent. </div></div><!--END_ND_TOOLTIPS-->




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